(19)
(11) EP 4 280 073 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
21.02.2024 Bulletin 2024/08

(43) Date of publication A2:
22.11.2023 Bulletin 2023/47

(21) Application number: 23187251.6

(22) Date of filing: 31.01.2020
(51) International Patent Classification (IPC): 
H04L 9/40(2022.01)
G06F 21/64(2013.01)
G06F 13/42(2006.01)
 G06F 12/1081(2016.01)
G06F 21/60(2013.01)
(52) Cooperative Patent Classification (CPC):
G06F 13/4282; G06F 21/606; G06F 21/64; H04L 63/0457; H04L 63/123; H04L 63/1466
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30) Priority: 08.03.2019 US 201962815554 P
18.06.2019 US 201916445019

(62) Application number of the earlier application in accordance with Art. 76 EPC:
20154933.4 / 3706005

(71) Applicant: INTEL Corporation
Santa Clara, CA 95054 (US)

(72) Inventors:
  • Shanbhogue, Vedvyas
    Austin TX, 78738 (US)
  • Chhabra, Siddhartha
    Portland OR, 97229 (US)
  • Harriman, David J.
    Portland OR, 97210 (US)
  • Makaram, Raghunandan
    Northborough MA, 01532 (US)
  • Schoinas, Ioannis T.
    Portland OR, 97205 (US)

(74) Representative: Samson & Partner Patentanwälte mbB 
Widenmayerstraße 6
80538 München
80538 München (DE)

   


(54) SECURE STREAM PROTOCOL FOR SERIAL INTERCONNECT


(57) Methods, systems, and apparatuses associated with a secure stream protocol for a serial interconnect are disclosed. An apparatus comprises a first device comprising circuitry to, using an end-to-end protocol, secure a transaction in a first secure stream based at least in part on a transaction type of the transaction, where the first secure stream is separate from a second secure stream. The first device is further to send the transaction secured in the first secure stream to a second device over a link established between the first device and the second device, where the transaction is to traverse one or more intermediate devices from the first device to the second device. In more specific embodiments, the first secure stream is based on one of a posted transaction type, a non-posted transaction type, or completion transaction type.







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